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Your search has returned 38 articles:
  • News

    Fish as Farmers: Reef residents tend an algal crop

    A damselfish cultivates underwater gardens of an algal species that researchers haven't found growing on its own.

    The special alga could be the fishy version of people's domesticated crops, says Hiroki Hata of Kyoto University in Japan. Growth tests of the alga, surveys of its distribution, and genetic analyses support that idea, he and Makoto Kato say in an upcoming Biology...

    08/09/2006 - 12:05 Ecology
  • Feature

    That's the Way the Spaghetti Crumbles

    Great scientists sometimes do silly experiments. The renowned physicist and Nobel prize winner Richard P. Feynman, for instance, once got it into his head to figure out why uncooked spaghetti doesn't snap neatly in two when you bend it far enough to break. Pay attention next time, and you'll notice that the pasta tends to shatter into three or more fragments of unequal lengths.

    ...

    11/08/2005 - 11:51 Physics
  • Food for Thought

    Light Therapy for Tainted Fish

    Aquaculture—farming fish for our dinner tables—is a big and growing international industry. Because many of the tastiest and most-profitable farmed fish are carnivores, their prepared diets usually include flakes or powders made from low-value fish, from fish processed for their oil, or from scraps of fish prepared for restaurants and supermarkets. Fish farmers happily bulk up their products...

    10/20/2005 - 12:06 Nutrition
  • News

    Champion of strength is forged in mighty anvil

    A newly created form of carbon has captured the crown of world's strongest known material. A team of researchers in Germany and France made the new material using a specialized, multijawed anvil that simultaneously squeezed and heated a powder of all-carbon molecules known as buckyballs.

    At 200,000 times atmospheric pressure and a temperature of 2,500 kelvins, the powder...

    09/13/2005 - 12:18 Physics
  • Feature

    Armor-Plated Puzzle

    A few years after Francis H. Crick and James D. Watson unveiled the structure of DNA in 1953, they rocked the fledgling field of molecular biology again with a bold notion: Viruses are, in part, structured as crystals are. That idea captivated Donald L.D. Caspar and Aaron Klug, who then systematically applied what they knew about crystal geometry to classify and predict the structures that...

    08/29/2005 - 10:49 Numbers